Posts filed under: DIY Audio

Resistor Orientation on the Oscilloscope

After reading my article about finding out capacitor inner-outer foil, some of my readers asked me to do the similar test on the resistor. Well, technically speaker, resistor shouldn’t have any inner or outer foil, since most likely it’s a...
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Observing Inner and Outer Foil of Some Popular Capacitors

I just got my Oscilloscope, so I can play more fun with my DIY stuff. Ok, let’s start with some basic “game”, to find the inner and outer foil of a capacitor. Basically, most of the capacitor, has what we...
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Duelund CAST Resistor on Test

Straight to the point. Just backed home tonight from a crazy traffic, then it was a great moment to payback! Let’s solder the new Duelund CAST Resistor. You can see brief information about Duelund CAST Resistor here andΒ  my DIY...
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Vertical Mount Transformer

Finally, I change my main transformer orientation, from horizontal to vertical. Not really easy to mount this giant transformer vertically. But here is the result. I’m quite sure I love this new orientation than before πŸ˜‰ Actually, the best solution...
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Transformer Mounting Position: From Vertical to Horizontal

Before, my main transformer was designed to be mounted in vertical position. As you can see, the L-Shape was designed to be bolted on the main chassis vertically. Due to some reason, after few hours experimenting, I didn’t really like...
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Duelund CAST Ag (CAST Silver) Early Hours Impression

Now it’s time to try the Duelund CAST Ag (CAST Silver) on my Aikido Preamp. You might be interested to read the installation process. Short words, here is the final installation photo. For the break-in purpose, I don’t use expensive...
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Measuring the Tube Glass Surface Temperature

My Sanwa PC510 multimeter has the capability to measure the temperature via small probe. So, I’m curious to measure my tube glass/surface temperature. I test the 6N1P, 6N6P, and 5U4G tubes....
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My Aikido with Duelund CAST Silver Installed

Few months ago, my Aikido transformer was burned due to my stupidity plugging in 100R bleeder resistor, instead of 100K one. Well, I have ordered another replacement few months ago, but just now I have time (and motivation) to install...
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Dual Pairs of Duelund CAST Capacitors!

A pair of Duelund CAST is enough to rob your wallet. How about two pairs? Well, sometime money is not an object – when you are pursuing the ultimate sound. No sky is high enough πŸ˜‰ I welcome, two pairs...
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Testing My Power Supply (Still Not Yet Finished)

I have a short free time at the afternoon, and it’s time to test my Power Supply for my Gainclone. Powered by Talema dual secondaries, each rated at 18VAC/6.3A...
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“Ridiculous” Gainclone Project

I will not use “Ultimate” or “Premium” project since no one knows (even me) the result of this Gainclone project. I would say… “Ridiculous Gainclone”. Is that OK? πŸ˜‰ To be honest, this more likely a mini battleship (A-Wing?) on...
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Talema Transformer for My Gainclone

Finally, with the help from my girlfriend, I manage to get the Nuvotem Talema Transformer on hand within a week. It’s rated at 6.3A with 2x18V output or about 225VA. Not bad for my LM1875 huh…...
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